Groote Island Gemco MWS Re-roof
Gemco Mobile Plant Workshop Re-roof, South32
Groote Eylandt Mining Company · Groote Eylandt, NT
Issued 26 May 2026 · closes 24 Jun 2026 · valid 120 days · Dylan Fraser
Stage two of the workshop. Stage one is on site now as QJ2039, which is why the purlin quantity here is measured rather than provisional.
Price, ex GST
$2,989,072
Cost build-up
$2,403,276
Margin
$585,796 20%
Markup applied
26%
on the cost build-up
Options
Priced alternatives raised while the scope was still moving. The current one is what the price above reflects, so when the client comes back in three weeks asking what happened to option B, the answer is on the record.
| Option | Scope | Price, ex GST | Against current | State |
|---|---|---|---|---|
| A | Full re-roof including purlin renewal | $2,989,072 | - | Current |
| B | Re-roof, purlins by others Gemco asked what it looks like if their own boilermakers do the purlins. | $2,211,913 | -$777,159 | Superseded |
Roster and travel priced in
FIFO work is priced on the roster, not on a day rate. The trips are part of the number.
Swing
21 on, 7 off
Crew allocated
10
Trips required
8
Work hours per day
10
Roster days on
21
Cycles
3
QClad
Roofing · Cladding · Acoustics
Estimate
Q32582
Valid 120 days from 26 May 2026
To
Groote Eylandt Mining Company
Warrick Delaney, Superintendent, Fixed Plant
w.delaney@gemco.com.au
ABN 51 009 265 006
Job
Groote Island Gemco MWS Re-roof
Groote Eylandt, NT
Sector: Mining & Resources
Estimate closes 24 Jun 2026
Scope of works
Second stage re-roof over the mobile plant workshop: strip, purlin renewal on a measured quantity, KLIP-LOK 700, insulation, safety mesh, roof lighting and full rainwater goods, over a live workshop.
Schedule of rates
| Item | Qty | Rate, ex GST | Amount |
|---|---|---|---|
| Preliminaries | |||
| RS-PRE-MOB Mobilisation & site establishment | 2 item | $18,450.00 | $36,900.00 |
| RS-PRE-SWM SWMS, JSA & site-specific safety plan | 2 item | $2,680.00 | $5,360.00 |
| RS-PRE-IND Site induction & verification of competency | 18 ea | $585.00 | $10,530.00 |
| RS-PRE-SUP Site supervision, leading hand | 186 day | $1,248.00 | $232,128.00 |
| RS-PRE-SCF Scaffold: supply, erect, hire 8 weeks, dismantle | 1,620 m² | $94.50 | $153,090.00 |
| RS-PRE-DEM Demobilisation & make good | 2 item | $7,420.00 | $14,840.00 |
| Roofing | |||
| RS-ROF-STR Strip existing roof sheeting & dispose | 5,180 m² | $52.40 | $271,432.00 |
| RS-ROF-KL7 KLIP-LOK 700 HI-STRENGTH roof sheeting, install | 5,180 m² | $141.80 | $734,524.00 |
| RS-ROF-INS Roof insulation blanket 75mm R1.8, install | 5,180 m² | $39.60 | $205,128.00 |
| RS-ROF-SAF Safety mesh, install to purlins | 5,180 m² | $24.80 | $128,464.00 |
| RS-ROF-SKY Fibreglass roof lighting, install | 420 m² | $198.00 | $83,160.00 |
| RS-ROF-RDG Ridge capping & barge, supply and install | 540 lm | $146.00 | $78,840.00 |
| RS-ROF-GUT Box gutter, supply and install | 348 lm | $385.00 | $133,980.00 |
| RS-ROF-DWP Downpipe & rainhead, supply and install | 38 ea | $864.00 | $32,832.00 |
| Wall cladding | |||
| RS-CLD-FLA Custom flashings, supply and install | 1,240 lm | $114.00 | $141,360.00 |
| Height access | |||
| RS-HGT-ANC Roof anchor point: supply, install & certify | 48 ea | $745.00 | $35,760.00 |
| RS-HGT-STA Static line system: supply, install & certify | 420 lm | $286.00 | $120,120.00 |
| RS-HGT-EWP EWP hire & operator, 45ft boom | 96 day | $1,780.00 | $170,880.00 |
| Weatherproofing | |||
| RS-WPF-SEA Sealant to laps, penetrations & flashings | 2,460 lm | $34.80 | $85,608.00 |
| RS-WPF-PEN Roof penetration flashing, form & seal | 54 ea | $684.00 | $36,936.00 |
| Labour & plant | |||
| RS-LAB-TRV Travel & living away: per person, per day | 720 day | $385.00 | $277,200.00 |
| Total, ex GST | $2,989,072.00 |
| GST at 10% | $298,907.20 |
| Total, inc GST | $3,287,979.20 |
Exclusions
- · Crane hire beyond the allowance shown
- · Barge freight
- · Asbestos identification or removal
- · Any work requiring the workshop to close
This tender is valid for 120 days from 26 May 2026 and is subject to QClad's standard conditions of subcontract. Quantities are measured from the tender documents and re-measured on completion. Payment terms 45 days EOM, retention 5%. All personnel hold current White Card, working-at-heights and site-specific inductions.
Dylan Fraser, Estimating Manager · QClad Services Pty Ltd · ABN 62 138 704 915 · QBCC 1174 320